A coepobatiok osi



Anonnen o. Enunnronsou, on interne, wisconsin', sesiones, ro :t

wonnsooxsrenv, or encino, wisconsin, n oor-@nominiert on nntnw inenten Application funi .tray le,

j To all whom t may concern:

siding at Racine, county of Racine, end

tete of l/Visconsin, have invented certain new and usefuliinprovements in Guiding Mechanism for rilractors, oi which the JEollowingis a specification.

My invention is more particularly designed for use in connection with four wheel tractors and has for its object to produce e ghiding mechanism of: simple construction and easy manipulation and which will not be aected when the guiding;` wheels of the tractor are at diilerent levels by son ot' the unevenness of the ground treversed.

ln the accompanying drawings 'orining part of the applicatiomllignre 1 1s e plan view partly in horizontal section of the front portionv of a tractor-showing my iingroved steering apparatus applied thereto;

ig.'2 a substantiallyr centrsl vertical section through the same, parts being shown in elevation; Fig. 3 e `i'roiit View of the sii-nie partially in vertical section; and Figs. e

5 and 6 perspective Vlews of details, Each'pert is identified by the seine reference character wherever it occurs in the several views.

My invention is illustreteci in connection with a tractor' having a body 6, wheels 7? front axle 8, and pivoted wheel journal members or knuckles 9 of known *form with torsion rods a connecting the body and theiront erde of known torni.- The arms 10 attached to the pivoted journal members or knuckles and the adjustable transverse rod 11 connecting them for movement together are also of common type end need not be further described. 131su usual one of the knuckles 9 is provided with a forwardly projecting erin 12 to which the steering mechanism hereinafter described is connected.

The tractor body comprises a shell 6, the forward end of which is closed by e transverse plate 6 and to the latter is bolted a housing 13 which'- contains a portion of the steering mechanism. A pair of lugs 1Ll,

15 are cast integral with e housingl at the lower end thereof, seid lugs terminating in bosses 16, 17 which ere bored to receive a pin 18 constituting the pivotal connection between the body of the tractor and the Specicetion of Letters Eetent.

:FR TRCTRS.

i920. Serial No. 381,267.

liront nXle n8. c ornilete the joint e precket 19 Iorineci with a correspondingly cored boss 20 1s riveted or otherwise secured to thecenter of the axle by rivets 21 and the boss 19 extends between the bosses 1o, 17 and receives the pin 18 by which the parts ere pivot'ed together.

A transverse worm shaft 22 is mounted in the casting 13 which is formed with this in viewwith a lateral opening 23 in which is mounted a bearing member or sleeve 24, the opposite ends o'which are supplied with bushings 25, 2G respectively in which the shaft 22 is journaled. Beyond the inner bushing the sheit 22 is' formed or nro- Avided with s worm 26a which in the oresent instance is splincd on seid shaft-'end secured in place by nut 27. At its other end shaft 22 is provided with a beveled geen 8 which meshes with o. similar pinion 29 on a shaft 30 which extends to the rear o the machine and is provided as usual with n steering wheel. T he beveled-"pinions 28, 29 are .inclosed in n costing?. 31 bolted to the sleeve and shafti') 'is jiourneled at its forward end in a boss on a can plete ing. Norm 26 engages a worm sector 3e which is bolted to a sector plate splined upon the inner end of a shaft 36 within the main housing` 13. Shaft 86 is journaled in an elongated boss 37 projecting frein the iront of the housing '13 and provided with uitnble bushing` 38. The forward end of t1 shaft 36 is squared as at 89 to receive an arm ll() and the'l'at'ter is clamped upon said shaft at its upper end and forked at its lower end as at 41, the tines or bronches ot the fork being perforated in register as et l2 to receive a pivot pin 43. Pivot pin L15 calpivot )in 49, and said pin is horizontelly1 1 perforate at to receive the laterally end 5l of the link rod L16. The end the link rod may be held in the vertical pir. by o pin 52. y

lt is to be particularly noted li-ot the pin closing an opening in the last said nous; l

lili) 43 in the lower end of the hanging arm 40 I is substantially coaxial with-the pivot 18 between the front axle and the housing 13 and it follows from this feature of the construction that the tilting ot the axle relative to the body of the tractor has no eect on the steering'of the machine.

I claim: i,

l. In a steering mechanism for tractors and the like, a'front axle',l a body pivoted thereto upon a horizontal axis, front wheels, knuckles on which the yfront wheels are journaled,pivoted on vertical axes to the respective ends of the front axle, connections between the knuckles for securing common movement thereof, an arm projectin from one of said knuckles, a longitudine ly extending shaft mounted directly above and in the plane of the pivot between the front axle and the body portion of the tractor, an arm on said shaft, a horizontal pin journaled in said arm and substantially in the line of the Avpivot pin between the axle and the body, a link connecting said pin and the forwardly projecting arm on the knuckle, and means for oscillating said shaft.

2. In a steering mechanism ford tractors and the like, a front axle, a body pivoted thereto upon a horizontal axis, wheels, knuckles on which the front wheels are journaled, pivoted on vertical axes to the respective ends of the front axle, connectionsy between the knuckles :tor securing common movement thereof, an `arm projecting forwardly from one of said knuckles, a longitudinally extending shaft mounted directly above and in the plane of the pivot between the front axle and the body portion of the tractor, a depending arm on said shaft, said arm being bifurcated at its lower end, a horizontal pin journaled in the bifurcated end of said arm, substantially in the line of the pivot pin between the axle and the body, a link rod having a downwardly turned end pivoted iin-.said pivot pin in the arm and connecting said pin and the for wardly projecting arm on the knuckle and means oroscillating said shaft.

3. In a steering mechanism for tractors and the like, a front axle, a body, a housing secured to the front end of the body, de-

pending lugs on the housing, a bracket on` the axle, a pivot pin received in openings in said lugs and bracket, and forming a pivot between said axle and body, a shaft journaled in said housing above the pivot pin, a sector on said shaft in the housing, a transverse Worm shaft, the worin of which engages said sector, means for rotating the worin shaft, an arm depending 'from the first mentioned shaft, front wheels. knuckles on which the front wheels are journaled, pivoted on vertical axes Ato the respective ends of the front axle, connections between the knuckles for, securing common movement thereof, an arm projecting forwardly from one of said knuckles, and a link rod connecting said ar'x'ns.

orinar o. HEDnicKsoN. 

